Septic tank vs treatment plant vs cesspit: which suits your home?
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Free tool Septic tank, treatment plant or cesspit chooser
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Short answer
Editor: The main difference in one or two sentences, from systems/types.json once verified (how each works, power need, where it can discharge).
How each system works
Editor: Septic tank, treatment plant, cesspit. Plain English, no sewage imagery. Sources from official or maker guidance.
Side by side
Editor: A table: discharge points allowed (per nation), needs power, emptying (maker or official guidance), running cost items. Every cell sourced or "not confirmed yet". Running costs link to C5 (batch 2) with the Ferncharge tariff handoff.
Which suits your site
Editor: Walk through the chooser above with one worked example.
Rules by nation
Editor: Where each system may discharge in each nation, from rules/drainage.json.
FAQs
Editor: Four to six FAQs, official sources only.